SH7080_09 Datasheet, PDF (1349/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 23 Flash Memory
(2) Device selection
In response to the device selection command, the boot program sets the specified device as the
selected device. The boot program will return the information on the selected device in response to
subsequent inquiries.
Command H'10
Size
Device code
SUM
⎯ Command H'10 (1 byte): Device selection
⎯ Size (1 byte): Number of characters in the device code (fixed at 4)
⎯ Device code (4 bytes): A device code that was returned in response to an inquiry on
supported devices (ASCII encoded)
⎯ SUM (1 byte): Checksum
Response
H'06
⎯ Response H'06 (1 byte): Response to device selection
The ACK code is returned when the specified device code matches one of the supported
devices.
Error
response
H'90
ERROR
⎯ Error response H'90 (1 byte): Error response to device selection
⎯ ERROR (1 byte): Error code
H'11: Sum-check error
H'21: Non-matching device code
(3) Inquiry on clock modes
In response to the inquiry on clock modes, the boot program returns the number of available clock
modes.
Command H'21
⎯ Command H'21 (1 byte): Inquiry on clock modes
Response
H'31
Size
Mode
…
SUM
Rev. 4.00 Dec. 15, 2009 Page 1289 of 1558
REJ09B0181-0400